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Method for loading subliming matters in aerogel material

An aerogel and substance technology, which is applied in the field of loading easily sublimable substances in aerogel materials, can solve the problems of harsh process conditions, long loading time, and difficulty in realizing automated processes, and achieves simple and controllable processes and high loading capacity. , The effect of efficient and uniform load

Active Publication Date: 2017-05-10
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process conditions of this method are relatively harsh, and the loading time is long, so it is difficult to realize the automatic process.

Method used

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  • Method for loading subliming matters in aerogel material
  • Method for loading subliming matters in aerogel material
  • Method for loading subliming matters in aerogel material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Container conduit used for pretreatment: Clean the cylinder and piston with deionized water and put them in a blast drying oven for 10 hours at 80°C to remove surface moisture;

[0041] (2) Put 5g of sublimated sulfur into the bottom of the piston sealing cylinder, stack 1g of carbon airgel material on it, and pack into the piston;

[0042] (3) Push the piston to the bottom of the cylinder, completely discharge the air in the cylinder and carbon airgel, connect the outlet of the cylinder to nitrogen, and pull the piston to fill it with nitrogen until the compression ratio is 2;

[0043] (4) Seal the outlet of the cylinder, and quickly push the piston at a speed of 0.2m / s. The nitrogen in the cylinder will heat up due to sudden compression, causing the sublimated sulfur to be sublimated by heat, and enter the pores of the carbon airgel material under the pressure of the piston. among;

[0044] (5) Quickly pull the piston to the initial length of the carbon airgel ma...

Embodiment 2

[0049] (1) Container conduit used for pretreatment: Clean the used cylinder and piston with deionized water and put them in a blast drying oven for 24 hours at 100°C to remove surface moisture;

[0050] (2) 20g of elemental iodine is put into the bottom of the piston-sealed cylinder, on which 5g of silicon airgel material is stacked, and the piston is packed into;

[0051] (3) Push the piston to the bottom of the cylinder, completely discharge the air in the cylinder and the silicon aerogel, connect the outlet of the cylinder to argon, and pull the piston to fill it with argon until the compression ratio is 10;

[0052] (4) Seal the outlet of the cylinder, and quickly push the piston at a speed of 1m / s. The argon in the cylinder will heat up due to sudden compression, causing elemental iodine to be sublimated by heat, and enter the pores of the silicon airgel material under the pressure of the piston. among;

[0053] (5) Quickly pull the piston to the initial length of the ai...

Embodiment 3

[0056] (1) Container conduit used for pretreatment: Clean the cylinder and piston with deionized water and put them in a blast drying oven at 90°C for 16 hours to remove surface moisture;

[0057] (2) 10g elemental naphthalene is put into the bottom of the piston-sealed cylinder, on which 2g carbon airgel material is stacked, and the piston is packed into;

[0058] (3) Push the piston to the bottom of the cylinder, completely discharge the air in the cylinder and carbon aerogel, connect the outlet of the cylinder to the nitrogen-argon mixture, and pull the piston to fill the nitrogen-argon mixture until the compression ratio is 6;

[0059] (4) Seal the outlet of the cylinder, and quickly push the piston at a speed of 0.6m / s. The mixture of nitrogen and argon in the cylinder will heat up due to sudden compression, causing simple naphthalene to sublimate and enter carbon gas condensation under the pressure of the piston. In the pores of the rubber material;

[0060] (5) Quickly...

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Abstract

The invention relates to a method for loading subliming matters in an aerogel material. The method comprises the following steps: putting a subliming elementary substance into the bottom of a piston sealing cylinder, stacking the aerogel material onto the upper part and putting in a piston; discharging air in the cylinder and the aerogel material, and then introducing inert gas from a cylinder outlet; sealing the cylinder outlet, quickly pushing the piston and increasing the temperature of the inert gas in the cylinder under the effect of sudden compression, thereby heating and subliming the subliming elementary substance and causing the subliming elementary substance enter into a pore channel of the aerogel material; quickly drawing the piston to the initial length of the aerogel material, reducing the temperature of the inert gas under the effect of volume expansion, coagulating the gas-phase subliming matters into nanometer-scale particles following the reducing of the temperature and uniformly dispersing the nanometer-scale particles into the pore channel of the aerogel material; and acquiring the aerogel material with high subliming matter load. According to the method provided by the invention, the load is high and the subliming matters are uniformly distributed. The method can be used for treating the industrial waste gas containing the subliming matters and preparing a uniform compound material.

Description

technical field [0001] The invention belongs to the field of environmental protection or the field of composite materials, and in particular relates to a method for loading easily sublimable substances in an airgel material. Background technique [0002] With the advancement of human industrialization, the earth's resources are increasingly depleted. While people are eager to find new energy sources, they pay more attention to the recycling of existing energy sources. In addition, environmental pollution caused by the use of fossil fuels has also been criticized by environmentalists and scientists. Since the 1980s in our country, while the national economy has developed rapidly, the problems of resource depletion and environmental pollution have become increasingly prominent. As a large coal country in my country, coal resources account for more than half of the total resource reserves, and coal resources are often accompanied by huge waste in mining, processing, and power ...

Claims

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Application Information

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IPC IPC(8): C04B41/50C04B41/46B01D53/00
CPCB01D53/00B01D53/002C04B41/009C04B41/46C04B41/5012C04B41/5093C04B41/5097B01D2257/708B01D2257/7027B01D2257/2064B01D2257/202B01D2257/10C04B30/00C04B41/4529C04B41/4517C04B41/4515
Inventor 燕映霖陈利萍王岩杨蓉许云华任冰李巧乐秦海超史忙忙魏一奇
Owner XIAN UNIV OF TECH